diff --git a/Changelog.md b/Changelog.md
index 37bf5d3..8f3e5f7 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,9 +1,13 @@
 # Change log for Docker-cheatset
 
-## 0.12.0 2023-01-03 Maintenance release
+## 0.12.0 2023-01-04 Maintenance release
 
 - Bumped from Ruby 3.1.3-slim-bullseye to 3.2.0-slim-bullseye, via PR [#52](https://github.com/jonasbn/docker-cheatset/pull/52) from @dependabot
 
+- Added `Gemfile.lock` to Docker image generation
+
+- Bumped Bundler version in `Gemfile.lock`
+
 ## 0.11.0 2022-12-03 Maintenance release
 
 - Bumped from Ruby 3.1.2-slim-bullseye to 3.1.3-slim-bullseye, via PR [#49](https://github.com/jonasbn/docker-cheatset/pull/49) from @dependabot
diff --git a/Dockerfile b/Dockerfile
index 45bb5b2..4cf2131 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,6 +13,7 @@ RUN apt-get update && \
     rm -rf /var/lib/apt/lists/*
 
 COPY Gemfile .
+COPY Gemfile.lock .
 
 RUN bundle install